Apparatus and method for estimating motion vector with...

Details Apparatus and method for estimating motion vector with... Apparatus and method for estimating motion vector with...

2005-04-08

2010-06-15

Lee, Y. (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

07738556

ABSTRACT:
A past frame at a past time has a motion vector in a block, and a reference frame at a reference time has a different block which is a motion-compensated block identical in position to a terminal point of a motion vector in the block. When a gradient method is used to detect a motion vector in the different block in the reference frame, a motion vector which is identical in magnitude and orientation to a motion vector and whose initial point is the different block in the reference frame is used as a candidate vector for initial vectors. The present invention is applicable to a signal processing apparatus for performing frame frequency conversion from a 24P signal to a 60P signal.

REFERENCES:
patent: 5089887 (1992-02-01), Robert et al.
patent: 5729302 (1998-03-01), Yamauchi
patent: 5844630 (1998-12-01), Yamauchi
patent: 6072833 (2000-06-01), Yamauchi
patent: 6370194 (2002-04-01), Nishikawa
patent: 7-135663 (1995-05-01), None
patent: 2001-61152 (2001-03-01), None

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